File:Raytheon CK722 April 1955.jpg
![File:Raytheon CK722 April 1955.jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/e/eb/Raytheon_CK722_April_1955.jpg/211px-Raytheon_CK722_April_1955.jpg?20110423185310)
Original file (600 × 1,700 pixels, file size: 167 KB, MIME type: image/jpeg)
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Summary
[edit]DescriptionRaytheon CK722 April 1955.jpg |
English: Raytheon introduced the CK722 in early 1953 at $7.60 each; the price was reduced to $3.50 in late 1954. The CK722 was actually a selected "fall out" from the firm's premium-priced hearing-aid transistor line. This germanium PNP junction transistor was very popular with hobbyist and was featured in many construction articles in magazines and books. This advertisement appeared on page 8 of the April 1955 issue of the Popular Electronics. |
Date | |
Source | Scanned and cropped from page 8 of the April 1954 Popular Electronics magazine by Michael Holley Swtpc6800 |
Author | Raytheon Mfg. Co. |
Permission (Reusing this file) |
This advertisement did not have a copyright notice and is in the public domain. From the US Copyright Office Circular 3. Page 3, Contributions to Collective Works. (A magazine is a "collective work.")
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Other versions | File:CK722.JPG |
Licensing
[edit]Public domainPublic domainfalsefalse |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:53, 23 April 2011 | ![]() | 600 × 1,700 (167 KB) | Swtpc6800 (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{en|1= Raytheon introduced the CK722 in early 1953 at $7.60 each; the price was reduced to $3.50 in late 1954. The CK722 was actually a selected "fall out" from the firm's premium-priced hearing-aid trans |
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Image title | Raytheon introduced the CK722 in early 1953 at $7.60 each; the price was reduced to $3.50 in late 1954. The CK722 was actually a selected "fall out" from the firm's premium-priced hearing-aid transistor line. This germanium PNP junction transistor was very popular with hobbyist and was featured in construction articles in magazines and books. This advertisement appeared in the April 1955 issue of the Popular Electronics. |
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Copyright holder | The advertisement did not have a copyright notice. |
Width | 900 px |
Height | 2,550 px |
Bits per component | 8 |
Compression scheme | LZW |
Pixel composition | Black and white (Black is 0) |
Orientation | Normal |
Number of components | 1 |
Horizontal resolution | 200 dpi |
Vertical resolution | 200 dpi |
Software used | Adobe Photoshop Elements 5.0 Windows |
File change date and time | 11:36, 23 April 2011 |
Color space | Uncalibrated |